## Socket
# On which socket do SQLgrey wait for queries
# use the following if you need to bind on a public IP address
# inet = <public_ip>:2501
# to bind on a UNIX socket, use the following:
# unix = /path/to/socket
# default :
# inet = 2501 # bind to localhost:2501

## Socket
# On which socket do SQLgrey wait for queries
# use the following if you need to bind on a public IP address
# inet = <public_ip>:2501
# to bind on a UNIX socket, use the following:
# unix = /path/to/socket
# default :
inet = 127.0.0.1:2501 # bind to localhost:2501

1) I confirm that SeLinux was disabled by default on clean Centos 7 on cloud provider - Need to have a check on that on the build;
2) I confirm that on EFAinit (web) I´ve selected "no" for IPV6 - Need to have some check on the build to change the inet if this selection is made;
3) I´ve changed mx priority for testing EFa4 and verify/var/log/mailog and emails are getting in
4) SQLgrey is working too

## Socket
# On which socket do SQLgrey wait for queries
# use the following if you need to bind on a public IP address
# inet = <public_ip>:2501
# to bind on a UNIX socket, use the following:
# unix = /path/to/socket
# default :
# inet = 2501 # bind to localhost:2501
inet = 127.0.0.1:2501

# A comma separated list of IPs or hosts where to listen in for connections.
# "*" listens in all IPv4 interfaces, "::" listens in all IPv6 interfaces.
# If you want to specify non-default ports or anything more complex,
# edit conf.d/master.conf.
#listen = *, ::
listen = *

Just tried an install of this into a fresh VM using the kickstart file, the install went ok although looks like it shut itself down rather than rebooting when it finished (wasn't watching it sorry). After I powered it on again, it went through the initial setup and looks to be alive & well. I was able to log in via both ssh & the web interface.